#!/usr/bin/env node

const log = console.log,
      usr = {
        name: 'zhaoyanzi',
        age: 21,
        qq: '2575992989@qq.com'
      };

log('name: \t%s', usr.name);
//log('age: \t%d', usr.age);
//log('age: \t' + usr.age);
log('age: \t', usr.age);
log('usr: \t%j',usr);

//log('name: \t%s\n age: \t%d \n usr: \t%j', usr.name,usr.age,usr);

console.error('error message');
console.table(usr);
